notes

This script demonstrates how to disable system inactivity timeout in Gnome when running Rygel and restore it to the original value after exiting:

#!/bin/bash

# Save current inactivity timeout
TIMEOUT=$(gsettings get org.gnome.settings-daemon.plugins.power sleep-inactive-ac-timeout)
echo "Current timeout: $TIMEOUT"

# Execute commands on Ctrl + C
function ctrl_c() {
  echo "Exiting rygel..."
  gsettings set org.gnome.settings-daemon.plugins.power sleep-inactive-ac-timeout $TIMEOUT
  echo "Inactivity timeout restored to $TIMEOUT. Bye!"
  sleep 2
}

# Set the trap for Ctrl+C
trap ctrl_c INT

# Disable the inactivity timeout
gsettings set org.gnome.settings-daemon.plugins.power sleep-inactive-ac-timeout 0

# Briefly start rygel to allow it to add new files
timeout 2s rygel

# Run command to fix filenames
rygel-titlefix

# Actually run rygel
rygel

Example with watch command:

watch -n 1 'ps aux | kazy -i cmproxy -e kazy | kazy -r "[\d]+" -x | xargs -I % ls -l /proc/%/fd/ | kazy -i socket | wc -l'

Example with ttyplot command:

{ while true; do ps aux | kazy -i cmproxy -e kazy | kazy -r "[\d]+" -x | xargs -I % ls -l /proc/%/fd/ | kazy -i socket | wc -l; sleep 1; done } | ttyplot

Install ttyplot:

grm install tenox7/ttyplot -n ttyplot

Ping plot:

ping 8.8.8.8 | sed -u 's/^.*time=//g; s/ ms//g' | ttyplot -t "ping to 8.8.8.8" -u ms

More examples

Open wireshark GUI as root user:

sudo wireshark

Start capturing by clicking Capture button and add the following display filter:

http and (tcp.port == 8082 or tcp.port == 8000)

Case 1: it is done in a separate commit:

• rebase on a base branch git rebase -i <base_branch>
• in the editor, find the commit which updates the pointer and remove it from history (by replacing pick with d)
• force push it when the rebase is done

Case 2: it is done in the commit which contains other changes

• rebase on a base branch git rebase -i <base_branch>
• in the editor, find the commit which includes the pointer update and mark it for editing (by replacing pick with e)
• git will start rebasing the code and will stop on selected commit for editing
• unstage the change git restore --staged <path_to_submodule>
• continue the rebase git rebase --continue
• force push it when the rebase is done

HUNT 44 Aerodynamicist Carbon Disc Wheelset product page

Max tyre pressure is 6.9 bar (100 psi). Recommended tyre pressure:

• for 28 mm tyres: 5.4 bar (max 6.9 bar)
• for 30 mm tyres: 4.7 bar (max 4.8 bar)

socat UNIX-LISTEN:/var/run/hapee-lb.sock,mode=666,fork TCP-CONNECT:127.0.0.1:1936

Will create /var/run/hapee-lb.sock file which forwards all input to 127.0.0.1:1936. fork parameter will allow it to handle connection close and accept more than 1 request

Very useful command to cherry pick the whole branch

git cherry-pick 751a77^..8b62f1

^ - means the the first commit will be included too

If your repository has an installed pre-commit hook which uses husky or anything similar and you use Github Desktop for linux installed via flatpak it won’t work. The reason for this is that flatpak environment doesn’t have all necessary dependencies (npx, husky and etc.). There is a way to mount parts of your host file system to the flatpak environment (with --filesystem flag), but it excludes all sensitive folders (including /usr/bin/). A possible solution would be to mount the content of /usr/bin/ to a custom folder in flatpak environment and override PATH environmental variable. But the quick fix for now is to just disable it:

flatpak override --user --env=HUSKY=0 io.github.shiftey.Desktop